Question

1. genetic drift primarily occurs in which type of population?

a. highly diverse populations
b. large populations
c. smaller populations
d. stable populations

1. what is biodiversity?

a. the controlled environment in ecotourism
b. a term for climate change effects
c. the variety of life on earth
d. the extinction of multiple species

1. what happens during peripatric speciation?

a. a small subgroup becomes isolated and diverges from a larger population
b. two populations inhabit different habitats with limited interbreeding
c. populations adapt to the same environment, leading to different traits
d. two populations develop distinct mating preferences

1. which evolutionary mechanism describes the formation of new species in neighboring but distinct habitats without physical barriers?

a. parapatric speciation
b. allopatric speciation
c. sympatric speciation
d. peripatric speciation

1. comparative anatomy showcases similarities in:

a. circulatory systems of amphibians and birds
b. cellular structures of plants and animals
c. skeletal structures between humans and certain primates
d. brain sizes between mammals and reptiles

1. what is the primary mechanism by which species change over time according to evolutionary theory?

a. artificial selection
b. environmental adaptation
c. genetic drift
d. natural selection

1. why are conservation efforts considered urgent?

a. they complicate human activities
b. they are only needed for popular species
c. they are unnecessary
d. they help prevent extinction and maintain biodiversity

Explanation:

• 8. Genetic drift: It is more prominent in smaller populations as random changes in allele frequencies have a greater impact when the population size is limited.
• 9. Biodiversity: Refers to the variety of life on Earth, including different species, genetic variations within species, and various ecosystems.
• 10. Peripatric speciation: A small subgroup becomes isolated and diverges from a larger population.
• 11. Parapatric speciation: Occurs in neighboring but distinct habitats without physical barriers.
• 12. Comparative anatomy: Shows similarities in skeletal structures between humans and certain primates as an example of homologous structures indicating common ancestry.
• 13. Natural selection: The primary mechanism by which species change over time according to evolutionary theory, where organisms better adapted to their environment tend to survive and reproduce.
• 14. Conservation efforts: Are urgent because they help prevent extinction and maintain biodiversity which is crucial for ecosystem stability and various ecological services.

Answer:

1. c. Smaller populations
2. c. The variety of life on Earth
3. a. A small subgroup becomes isolated and diverges from a larger population
4. a. Parapatric speciation
5. c. Skeletal structures between humans and certain primates
6. d. Natural selection
7. d. They help prevent extinction and maintain biodiversity